Feature: 1. This pen type digital meter is a small 3 3/4 bit true RMS automatic scanning digital instrument. According to the difference between voltage and resistance, operator do not need to turn the dial to select the function, because of its automatic identification measurement. 2. The stable performance, high precision, high reliability, clear reading, overload conservation function are achieved. And this meter charged by AAA 1.5V low battery. and with VA reverse display screen, screen reflection for easy response to various environmental issues, it is cherished by most people. 3. Digital multimeter supports NCV non-contact voltage detection, and can distinguish the null line and the fire wire to avoid the risk of electric shock. Safe and reliable. 4. This new type of meter also automaticaly identify Dc voltage, Ac voltage, resistance, continuity, without any selection,besides with the function manually switching to measure electric field induction and fireline discrimination. it will be an ideal tool for radio enthusiasts and families, thanks to its superior performance. 5. The pen multimeter has an automatic shutdown function, which will automatically shut down if there is no operation for mins, lowe power consumption. Audible + light alarm make measurement more easy. 6. Compact pen type design for convenient single hand use, easy to carry and  operate. It is very suitable for home, school, laboratory, factory and other applications. Specification: Model: A3005A / A3005B (Optional) Type: Standard Configuration / High Configuration (Optional) Material: ABS Item Size: A3005A: 170.5 * 25.4mm / 6.71 * 1 inch A3005B: 183.5 * 29 * 24mm / 7.22 * 1.14 * 0..94 inch Item Weight: A3005A: 58g / 2.04oz A3005B: 60g / 2.12oz Package Size: 188 * 60 * 30mm / 7.4 * 2.36 * 1.18 inch Package Weight: A3005A Standard Configuration: 122g / 4.3oz A3005A High Configuration: 145g / 5.11oz A3005B Standard Configuration: 124g / 4.37oz A3005B High Configuration: 148g / 5.22oz Model A3005A A3005B AC Voltage 4V~600V 6V~600V DC Voltage 400mV~600V 600mV~600V Resistance 400Ω~40MΩ 600Ω~60MΩ Capacitance 10nF~40mF 10nF~60mF Hz Frequency 10Hz~10MHz 10Hz~10MHz % Duty Cycle × 0.1%~99.9% Diode √ √ Ambient Temperature √ √ Buzzer √ √ NCV Voltage Detection √ √ Live Zero Line Identification √ √ Phase Sequence Detection × √ Line Breakpoint √ √ Find Automatic Shutdown √ √ Low Battery Prompt √ √ Flashlight Lighting √ √ Hold Data Retention √ √ Screen VA color reverse display screen . Package List: 1 * Pen-shaped Digital Multimeter 1 * Test Leads 2 * Gold-plated Extra-pointed Hands 1 * In-line Clip 1 * U Plug 1 * Copper and Nickel Plating Needle 1 * Copper and Nickel Plating Short Needle 1 * Banana Pointed Needle 1 * Copper-nickel Plated Flat Head Needle 1 * User Manual (English) Note: A3005A does not include phase sequence test function.